Patents by Inventor Hee Jun Ahn

Hee Jun Ahn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250058291
    Abstract: An apparatus for controlling viscosity of a slurry includes a mixing module mixing raw materials for a secondary battery, and a processor performing machine learning for prediction of viscosity of the slurry, predicting viscosity of the slurry in real time during a mixing process through machine learning, and adjusting conditions of the mixing process performed by the mixing module such that a predictive viscosity of the slurry meets a target viscosity.
    Type: Application
    Filed: December 8, 2023
    Publication date: February 20, 2025
    Inventors: Bo Ra KIM, Yong Jin KIM, Jake KIM, Tae Sung AHN, Hee Chan JUNG, Yong Jun HWANG, Jee Hoon HAN, Jong Man KIM, Gi Heon KIM
  • Publication number: 20230303431
    Abstract: A method of manufacturing a reinforced cover window and a reinforced cover window manufactured thereby are proposed. The method includes a first step of forming a TPI layer on a base substrate, a second step of separating the TPI layer from the base substrate, a third step of forming an adhesive buffer layer on a glass substrate, and a fourth step of stacking the TPI layer on the adhesive buffer layer. This secures the TPI's unique pencil hardness of 4H to 6H while maintaining the unique aesthetic sense and touch feeling of the glass.
    Type: Application
    Filed: March 9, 2023
    Publication date: September 28, 2023
    Applicant: UTI INC.
    Inventors: Kukhyun SUNWOO, Hak Chul KIM, Hee Jun AHN, Joo Seok LEE, Min Gyou SEO
  • Publication number: 20230269896
    Abstract: Proposed are a hybrid flexible cover window and a method of manufacturing the same. The hybrid flexible cover window includes a flat portion formed on a flat area of a flexible display and a folding portion which is formed in succession to the flat portion and formed in a folding area of the flexible display. The hybrid flexible cover window includes a substrate, a transparent polyimide layer formed on the glass substrate, and an adhesive buffer layer formed between the glass substrate and the TPI layer, in which the TPI layer has a UV cut-off wavelength of less than 380 nm.
    Type: Application
    Filed: February 8, 2023
    Publication date: August 24, 2023
    Applicant: UTI INC.
    Inventors: Kukhyun SUNWOO, Tea Joo HA, Hee Jun AHN, Seok Pil JIN, Jae Suk OH, Joo Seok LEE
  • Patent number: 11398390
    Abstract: The present invention relates generally to a pendulum valve that is installed in a connection pipe connecting a vacuum pump between the chamber of a dry etching apparatus and the vacuum pump in the etching line of a semiconductor manufacturing process and adjusts the amount of gas, and more particularly to a pendulum valve that includes a fixed housing configured such that a shaft coupled to a valve gate for adjusting the amount of gas is closely fixed to a valve housing through an O-ring and a rotation shaft (an internal shaft) coupled to the inside of the fixed housing, so that only the rotation shaft separate from the value housing is rotated by using a lip seal as a rotation axis, thereby suppressing the discharge of unnecessary particles and hardened substances while maintaining the sealing characteristics of the pendulum valve.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: July 26, 2022
    Assignee: FUGEN CO., LTD.
    Inventors: Hee Jun Ahn, Joo taek Kim
  • Publication number: 20210358771
    Abstract: The present invention relates generally to a pendulum valve that is installed in a connection pipe connecting a vacuum pump between the chamber of a dry etching apparatus and the vacuum pump in the etching line of a semiconductor manufacturing process and adjusts the amount of gas, and more particularly to a pendulum valve that includes a fixed housing configured such that a shaft coupled to a valve gate for adjusting the amount of gas is closely fixed to a valve housing through an O-ring and a rotation shaft (an internal shaft) coupled to the inside of the fixed housing, so that only the rotation shaft separate from the value housing is rotated by using a lip seal as a rotation axis, thereby suppressing the discharge of unnecessary particles and hardened substances while maintaining the sealing characteristics of the pendulum valve.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 18, 2021
    Inventors: Hee Jun AHN, Joo taek KIM
  • Publication number: 20170175904
    Abstract: There is provided a rectangular gate vacuum valve assembly comprising: a gate frame having an inner space defined therein, wherein the gage frame has opposite side walls and opposite top and bottom walls, wherein the gate frame has opposite first and second gates defined in the opposite side walls respectively, wherein the gate frame has first and second holes defined in the opposite top and bottom walls respectively; a first valve mechanism configured to translate through the first hole into the inner space and/or to rotate in the inner space to selectively open or close the first gate; and a second valve mechanism configured to translate through the second hole into the inner space and/or to rotate in the inner space to selectively open or close the second gate.
    Type: Application
    Filed: May 26, 2015
    Publication date: June 22, 2017
    Inventor: Hee Jun AHN
  • Patent number: 7366119
    Abstract: Disclosed is a data communication system transmitting data using adaptive modulation at an acknowledged data transfer mode simultaneously. The present invention includes a first step of monitoring variation of radio environments by a receiving end receiving packets sequentially, a second step of determining a coding type to be varied in accordance with the variation of the radio environments in the receiving end so as to inform a transmitting end of the determined coding type, and a third step of forwarding sequentially the corresponding packets with a transfer rate in accordance with the determined coding type in the transmitting end.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: April 29, 2008
    Assignee: LG Electronics Inc.
    Inventor: Hee Jun Ahn
  • Publication number: 20030012201
    Abstract: Disclosed is a data communication system transmitting data using adaptive modulation at an acknowledged data transfer mode simultaneously. The present invention includes a first step of monitoring variation of radio environments by a receiving end receiving packets sequentially, a second step of determining a coding type to be varied in accordance with the variation of the radio environments in the receiving end so as to inform a transmitting end of the determined coding type, and a third step of forwarding sequentially the corresponding packets with a transfer rate in accordance with the determined coding type in the transmitting end.
    Type: Application
    Filed: July 11, 2002
    Publication date: January 16, 2003
    Applicant: LG Electronics Inc.
    Inventor: Hee Jun Ahn